Metallic railway-tie



(No Model.)'

J. J. GALLAHAN. METALLIC RAILWAY TIE.

Patented Nov. 11, 1890 WITNESSES A TTOHNEYS UNITED STATES PATENT OFFICE.

JOSEPH J. CALLAHAN, OF NEWBURG, NEW YORK.

METALLIC RAILWAY-TIE.

SPECIFICATION forming part of Letters Patent No. 440,465, dated November 11, 1890.

Application filed June 11, 1890. Serial No. 355,073. (No model.)

To all whom it may concern.-

Be it knownthat I, JOSEPH J OALLAHAN, of Newburg, in the county of Orange and State of New York, have invented a new and Improved Metallic Railway-Tie, of which the following is a full, clear, and exact description.

The object of my invention is to provide a metallic railway-tie which shall when laid possess the requisite degree of elasticity to obiate the injurious effect to rolling-stock due to too rigid ties, which shall be practical and safe, and which may, if desired, be constructed to hold the rail without the use of separate bolts.

The invention also consists of the construction, arrangement, and combination of parts, all as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forminga partof this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a plan View of my new and improved railway-tie, shown as supporting two rails which are broken away to show the construction of the tie-plates. Fig. 2 is an end elevation of the tie and one rail. Fig. 8 is a sectional elevation on linea' a: of Fig. 1. Fig. 4: is a side view of the tie. Fig. 5 is a sectional elevation of the same on line pg of Fig. 4.. Fig. 6 is a detail plan view of one end of the tie placed upon the track-beam of a trestle or bridge. Fig. 7 is a sectional elevation of the same on the line y y of Fig. 6, and Fig. 8 is a detail perspective view of the anchor and beam shown in Fig. 7.

A and B represent the metal plates, which together compose my new railway-tie. These plates are locked together at their edges to stand at an angle to each other, and the looking is effected in this instance by projections to a a a on plate A and projections 19 b 6 12 on plate B. These projections interlock, as

' shown clearly in Fig. 1, and a downwardly of the plates relatively to each other or to the rails. In this manner the grip on the rail is as in a vise, and the tie and rail become fixed and act as one. When the weight of a train comes upon the rails R and the plates A B are depressed and yield or spread, the said lips bearing on the outer surfaces of the plates limit the spreading action of the plates.

lhe rails are not bolted to the plates A B, but are held by the projections a'b and 11%, these being undercut to form the lockinglugs cl d d (i which grasp the opposite edges of the base of the rail, and when the rail is depressed under the weight of a passing train, producing a spreading action of the lower edges of the plates, the said locking-lugs grasp the rail with increasing force, according to the weight brought upon the rails. The plates A B are by preference formed with the flanges f f, which furnish wide supports for the rails, as shown clearly in Fig. 3. The locking projections a 19 together and with the projections a I) prevent the plates from endwise movement.

In setting the ties in the rail-bed the plates A B will be locked together and placed and tamped wholly or partially from the open ends of the inverted tie, and then the ends will be closed by the triangular end pieces 0, each formed with a lower lug c to enter a small notch or socket e in the plate. and also with an upper key-lug c to pass through an opening e in plate 13 to receive a key e as shown clearly in Fig. 1.

At the left of Fig. 4 is shown a wide seat for a switch-rail. In this is placed a supporting and chafe plate h for the switch-rail, held by a projection h, passed down between the adjacent edges of the plates A B.

In Figs. 4 and 6 the plates A B are formed at their lower edges with the undercut slots 01, which form the lugs n, which adapt them to be conveniently fastened upon the beams or T-rails N, which are commonly used in trestle-work and bridges.

In Figs. 7 and 8 is shown the anchor P, se cured to the rail N between the plates A B to prevent them from shifting and to limit the depression of the tie. The angle of the anchor is less than that of the plates when in normal position, so that a space is left to permit the lower edges of the plates to slide on ICO the beam until the plates strike the anchor, which limits further depression. The anchor is formed with flanges p, which rest on the beams, as shown in Fig. 8.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A metallic railway-tie composed of two separate plates, each having locking devices at one edge, whereby they may be locked together in diverging position, substantially as described.

2. A metallic railway-tie comprising two plates formed With seats for the rails and with lugs for grasping the rails and holding the latter on said seats, the plates being provided on one edge of each with projections which interlock with each other and lock the plates together, substantially as described.

3. A railway-tie comprising two separate plates, each formed with looking projections having downwardly-projecting lips, substantially as described.

4. A railway-tie comprising two separate plates, each formed at one edge with looking 11 the projections a, b, a and being undercut to form the locking-lugs d d d d substantially as described.

8. The plates A B, each formed with looking projections at one edge and with slots n, having locking projections n at onev edge, substantially as described.

JOSEPH J. OALLAI-IAN.

Witnesses:

H. A. WEST, E. M. CLARK. 

